{"id":29850,"date":"2025-04-08T15:00:00","date_gmt":"2025-04-08T20:00:00","guid":{"rendered":"https:\/\/esim.holafly.com\/de\/?p=29850"},"modified":"2026-03-24T07:18:26","modified_gmt":"2026-03-24T12:18:26","slug":"was-ist-isim","status":"publish","type":"post","link":"https:\/\/esim.holafly.com\/de\/faq\/glossar\/was-ist-isim\/","title":{"rendered":"Was ist iSIM und wie funktioniert sie?"},"content":{"rendered":"\n<p>Eine iSIM (Integrated SIM) ist eine fortschrittliche Technologie, die in LTE- und 5G-Netzen verwendet wird. Im Gegensatz zur eSIM, die als separater Chip existiert, ist die iSIM direkt im Ger\u00e4t integriert. Dadurch bietet sie Vorteile wie h\u00f6here Effizienz und verbesserte Sicherheit. In diesem Artikel erf\u00e4hrst du, was iSIM ist, welche Vorteile sie hat und wie sie sich von der eSIM-Technologie unterscheidet. Entdecke, wie diese Innovationen deine Verbindung verbessern!<\/p>\n\n\n\n<div class=\"wp-block-atomic-blocks-ab-columns ab-layout-columns-2 ab-2-col-wideleft\"><div class=\"ab-layout-column-wrap ab-block-layout-column-gap-2 ab-is-responsive-column\">\n<div class=\"wp-block-atomic-blocks-ab-column ab-block-layout-column\"><div class=\"ab-block-layout-column-inner\">\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Inhaltsverzeichnis<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/esim.holafly.com\/de\/faq\/glossar\/was-ist-isim\/#iSIM-vs-eSIM\" >iSIM vs. eSIM<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/esim.holafly.com\/de\/faq\/glossar\/was-ist-isim\/#Tipps-zur-Fehlerbehebung\" >Tipps zur Fehlerbehebung<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"iSIM-vs-eSIM\"><\/span>iSIM vs. eSIM<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>iSIM ist direkt im Prozessor des Ger\u00e4ts integriert, w\u00e4hrend die eSIM als separater Chip auf der Platine existiert.<\/li>\n\n\n\n<li>iSIM ist deutlich kleiner als eSIM, was kompaktere Ger\u00e4tekonstruktionen erm\u00f6glicht.<\/li>\n\n\n\n<li>iSIM verbraucht in der Regel weniger Energie als&nbsp; eSIM, wodurch die Akkulaufzeit verl\u00e4ngert wird.<\/li>\n\n\n\n<li>Sowohl iSIM als auch eSIM unterst\u00fctzen Remote-Provisioning, sodass der Netzbetreiber einfach gewechselt werden kann.<\/li>\n\n\n\n<li>iSIM bietet durch die direkte Integration h\u00f6here Sicherheit, w\u00e4hrend eSIM anf\u00e4lliger f\u00fcr physischen Diebstahl ist.<\/li>\n\n\n\n<li>iSIM eignet sich ideal f\u00fcr IoT-Ger\u00e4te, w\u00e4hrend eSIM h\u00e4ufiger in Smartphones und Unterhaltungselektronik verwendet wird.<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-atomic-blocks-ab-column ab-block-layout-column\"><div class=\"ab-block-layout-column-inner\" style=\"text-align:center\">\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/media.holafly.com\/sites\/18\/2023\/04\/iSIM-vs-eSIM.svg\" alt=\"\" class=\"wp-image-182379\" style=\"width:225px;height:auto\"\/><\/figure>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tipps-zur-Fehlerbehebung\"><\/span>Tipps zur Fehlerbehebung<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>W\u00e4hrend iSIM zunehmend von Mobilfunkanbietern akzeptiert wird, kannst du mit der eSIM-Technologie \u00fcberall verbunden bleiben. Hol dir die <a href=\"https:\/\/esim.holafly.com\/de\/faq\/ueber-esims\/wie-funktionieren-esims-holafly\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">Holafly eSIM<\/mark><\/strong><\/a><strong> <\/strong>und erlebe nahtloses Netzbetreiber-Switching, ganz ohne physische SIM-Karte!<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Eine eSIM \u00fcber die Holafly-Website kaufen<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Um eine eSIM zu kaufen, geh auf <strong><a href=\"https:\/\/esim.holafly.com\/de\/\" target=\"_blank\" rel=\"noreferrer noopener\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">Holafly.com<\/mark><\/a><\/strong> <strong>\u2192<\/strong> Gib dein Reiseziel in die Suchleiste \u201e<strong>Wohin reisen Sie?<\/strong> ein und w\u00e4hle es aus <strong>\u2192<\/strong> Scrolle bis zum Ende der Seite.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/media.holafly.com\/sites\/18\/2025\/04\/Purchase-process-part-1-GE.svg\" alt=\"Eine eSIM \u00fcber die Holafly-Website kaufen\" class=\"wp-image-205850\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>W\u00e4hle die <strong>Anzahl der Tage<\/strong> (dies gibt an, wie lange dein Tarif nach der Aktivierung der eSIM g\u00fcltig ist. Es legt keine bestimmten Kalenderdaten f\u00fcr die Aktivierung fest, da die eSIM erst dann aktiviert wird, wenn du sie an deinem Reiseziel aktivierst) <strong>\u2192<\/strong> W\u00e4hle die <strong>Anzahl der eSIMs<\/strong> <strong>\u2192<\/strong> Best\u00e4tigen Sie Ihren Kauf, indem Sie \u201e<strong>Erhalte unbegrenzte Daten<\/strong>\u201c ausw\u00e4hlen <strong>\u2192 <\/strong>Tippe auf <strong>Zur Kasse gehen<\/strong> <strong>\u2192<\/strong> <strong>W\u00e4hle deine Zahlungsmethode<\/strong> <strong>\u2192<\/strong> <strong>Gib<\/strong> deine E-Mail- und Rechnungsadresse ein <strong>\u2192<\/strong> <strong>Weiter zur Zahlung \u2192<\/strong> <strong>F\u00fcge<\/strong> deine Karteninformationen hinzu <strong>\u2192<\/strong> <strong>Vervollst\u00e4ndige<\/strong> den Kauf, und das war&#8217;s.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/media.holafly.com\/sites\/18\/2025\/04\/Purchase-process-part-2-GE.svg\" alt=\"Eine eSIM \u00fcber die Holafly-Website kaufen\" class=\"wp-image-205852\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Erfahre mehr \u00fcber iSIM-Technologie, wie sie funktioniert und worin sie sich von der eSIM unterscheidet. Entdecke die Vorteile dieser innovativen Verbindungsl\u00f6sung.<\/p>\n","protected":false},"author":168,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[111],"tags":[99],"class_list":["post-29850","post","type-post","status-publish","format-standard","hentry","category-glossar","tag-faq"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Was ist iSIM und wie funktioniert sie? - Holafly FAQs<\/title>\n<meta name=\"description\" content=\"Erfahre mehr \u00fcber iSIM-Technologie, wie sie funktioniert und worin sie sich von der eSIM unterscheidet. 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